Every good Pixar movie needs a villain, and the studio is especially good at giving these antagonists backstories that impact the film's plot in unexpected ways. As a whole, Disney loves its deliciously despicable villains, and the movies from Pixar are no exception. They are malicious, conniving, and have evil plans for days—but they often come with a sympathetic side. Whether it's the reason they went wrong in the first place or the situation that showed them the errors of their ways, Pixar antagonists are often more than they seem.

https://screenrant.com/pixar-movie-villain-sad-backstory-origin-sympathetic/